fix buggy driver
fix buggy driver

git-svn-id: 8f60b0cb95795e7f2da4f2192af0e1f6ffac8291@563 3f6dc0c8-ddfe-455d-9043-3cd528dc4637

VTCSecureLLC/ortp,Distrotech/oRTP,videomedicine/oRTP,Linphone-sync/oRTP,videomedicine/oRTP,avis/ortp,carpikes/ortp,caizw/ortp,caizw/ortp,Distrotech/oRTP,wugh7125/ortp,samueljero/linphone-oRTP,samueljero/linphone-oRTP,Linphone-sync/oRTP,dozeo/ortp,wugh7125/ortp,dmonakhov/ortp,caizw/ortp,samueljero/linphone-oRTP,dmonakhov/ortp,carpikes/ortp,dozeo/ortp,Distrotech/oRTP,carpikes/ortp,Linphone-sync/oRTP,avis/ortp,VTCSecureLLC/ortp,jiangjianping/ortp,dmonakhov/ortp,VTCSecureLLC/ortp,dozeo/ortp,videomedicine/oRTP,wugh7125/ortp,avis/ortp,jiangjianping/ortp,jiangjianping/ortp